I think the consensus has been that the V6 diffs aren't a huge upgrade from the 4cyl version. The 4cyl version is plenty strong. If you have the option to go V6, then do it. But don't go out of your way or spend a lot of extra money just to run the V6 3rd. It has some improvements, but they aren't major.


Also, lockers are not necessarily the same between the 4cyl and V6 diffs (I think someone was implying that). A V6 locker (carrier) will fit a V6 or 4cyl diff provided you use the correct bearings, but a 4cyl carrier will not fit the V6 diff without modification (a machined spacer to fit the correct bearings- contact Jim at Inchwormgear.com for info on that).

Because of this, ARB quit producing the 4cyl version of their locker (RD-01) and now only carries the V6 version (RD-23) since it will fit either diff using the correct bearings.